CN105237031A - Foam concrete and manufacturing method thereof - Google Patents
Foam concrete and manufacturing method thereof Download PDFInfo
- Publication number
- CN105237031A CN105237031A CN201510826226.1A CN201510826226A CN105237031A CN 105237031 A CN105237031 A CN 105237031A CN 201510826226 A CN201510826226 A CN 201510826226A CN 105237031 A CN105237031 A CN 105237031A
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- China
- Prior art keywords
- additive
- foamed concrete
- weight ratio
- concrete preparation
- gelling material
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W30/00—Technologies for solid waste management
- Y02W30/50—Reuse, recycling or recovery technologies
- Y02W30/91—Use of waste materials as fillers for mortars or concrete
Abstract
The invention discloses foam concrete which contains a mineral admixture, a cementing material and a chemical addition agent. The mineral admixture is obtained by smashing building waste materials. The weight ratio of the cementing material to the mineral admixture is 100:200 to 100:250. The weight ratio of the cementing material to the chemical addition agent is 100:4.5 to 100:7.3. The foam concrete saves energy and is environmentally friendly and low in weight. The invention further discloses a manufacturing method of the foam concrete.
Description
Technical field
The present invention relates to engineering materials technical field, specifically, relate to a kind of foamed concrete and manufacture method thereof.
Background technology
Foamed concrete needs gas to introduce in concrete slurry according to application by chemistry or physical method, shaping through reasonable maintenance, formation containing sealed porosity tiny in a large number, there is the concrete product of suitable intensity.
Solid clay brick volume weight, and the reason of heat-insulating sound-insulating poor effect, gradually replace by foamed concrete, at present, generally add admixture be made into concrete form for building with cement, sand, stone in China's building trade, building body is with reinforced concrete frame structure, and body of wall is based on hollow brick and foam concrete block.Existing foamed concrete material, be main mainly with cement, cement is directly used as consolidating material, and the mass percent in concrete accounts for 70-85%, and in this kind of formula, cement demand is large, a large amount of coal resources to be consumed in manufacture of cement, and discharge a large amount of carbon dioxide greenhouse gas, in the course of time, cause the shortage of resource, aggravation Greenhouse effect, contaminate environment.
Summary of the invention
The object of the present invention is to provide a kind of foamed concrete, energy-conserving and environment-protective and light weight.
The technical scheme that foamed concrete disclosed by the invention adopts is: a kind of foamed concrete, containing Additive, gelling material and chemical additive, described Additive is pulverized obtained by construction waste, the weight ratio of described gelling material and Additive is 100:200 to 100:250, and the weight ratio of described gelling material and chemical additive is 100:4.5 to 100:7.3.
Preferably, described chemical additive comprises water reducer, growing agent and aluminium powder, and the weight ratio of described water reducer, growing agent and aluminium powder is (2 ~ 3): (2.4 ~ 4): (0.1 ~ 0.3).
Beneficial effect disclosed by the invention is: in foamed concrete, the consumption of gelling material is less than 1/3rd; significantly decrease the usage quantity of gelling material; effectively reduce the carbon dioxide gas scale of construction of coal resources that gelling material consumes in the fabrication process and release; there is the effect of energy-conserving and environment-protective; and the foamed concrete light weight produced; because construction waste proportion is high, improve the repeating utilization factor of waste material, be beneficial to environment protection.
The technical scheme that foamed concrete preparation method disclosed by the invention adopts is:
A kind of foamed concrete preparation method, comprises the following steps:
S1 prepares Additive: take construction waste as raw material, pulverizes and makes Additive;
S2 mixes: by Additive, gelling material and chemical additive with weight ratio 100:(200 ~ 250): the ratio of (4.5 ~ 7.3) mixes;
S3 foaming;
S4 cuts.
Preferably, in step sl, construction waste first through bright solarization, makes it retain 7-9% moisture before pulverizing.
Preferably, in step sl, construction waste selects satisfactory Additive by vibratory screening apparatus after being pulverized.
Preferably, select by vibratory screening apparatus the adulterant that diameter is less than 1 millimeter.
Preferably, in step S3, foaming in a mold.
Preferably, the foaming time is 15 to 60 minutes.
Preferably, the chemical additive of employing is the mixture comprising water reducer, growing agent and aluminium powder, and the weight ratio of described water reducer, growing agent and aluminium powder is (2 ~ 3): (2.4 ~ 4): (0.1 ~ 0.3).
The beneficial effect of foamed concrete preparation method disclosed by the invention is: be that raw material makes Additive with construction waste; improve the repeating utilization factor of waste material; be conducive to environment protection, reduce the usage quantity of gelling material, effectively reduce the carbon dioxide gas scale of construction of coal resources that gelling material consumes in the fabrication process and release; there is the effect of energy-conserving and environment-protective; and the foamed concrete light weight produced, alleviate the deadweight of building, be beneficial to carrying simultaneously; reduce labor intensity, improve construction speed.
Accompanying drawing explanation
Fig. 1 is the schematic flow sheet of foamed concrete preparation method of the present invention.
Embodiment
Below in conjunction with specific embodiment and Figure of description the present invention be further elaborated and illustrate: a kind of foamed concrete, containing Additive, gelling material and chemical additive, described Additive is pulverized obtained by construction waste, the diameter of the adulterant after pulverizing is little, preferably be not more than 1 millimeter, be convenient to stir, the weight ratio of described gelling material and Additive is 100:200 to 100:250, the weight ratio of described gelling material and chemical additive is 100:4.5 to 100:7.3, described chemical additive comprises water reducer, growing agent and aluminium powder, described water reducer, the weight ratio of growing agent and aluminium powder is (2 ~ 3): (2.4 ~ 4): (0.1 ~ 0.3).
Foamed concrete capacity is at 500-800kg/m
3can bubble through the water column, capacity is generally only 1/4 of solid clay brick, 1/2 of hollow block, the 50-60% of wall load can be alleviated, structural weight per square meter alleviates 20-30%, and speed of application is fast, greatly reduces labor strength and construction cost, and due to recycling construction waste, significantly reduce the usage quantity of gelling material, effectively reduce the carbon dioxide gas scale of construction of coal resources that gelling material consumes in the fabrication process and release, there is the effect of energy-conserving and environment-protective.
A kind of foamed concrete preparation method, comprise the following steps: S1 prepares Additive: take construction waste as raw material, select through artificial or machinery, the building wastes such as removing wood, reinforcing bar, waste plastic bag, airing, moisture is made to be retained in 7-9%, preferably 8%, pulverize and make Additive, utilize vibratory screening apparatus to select diameter and be less than 1 millimeter and obtain meticulous adulterant, because moisture in construction waste retains 7-9%, therefore can effectively reduce the Dust Capacity in crushing process;
S2 mixes: by Additive, gelling material and chemical additive with weight ratio 100:(200 ~ 250): the ratio mixing of (4.5 ~ 7.3), wherein stir, wherein in chemical additive, the weight ratio of water reducer, growing agent and aluminium powder is (2 ~ 3): (2.4 ~ 4): (0.1 ~ 0.3);
S3 foaming: to load in mould 15 to 60 minutes, foaming;
S4 cuts: cut into finished product according to demand.
Foam hole is formed in foamed concrete, make concrete light and thermal insulation separation thermalization, Additive, gelling material and chemical additive stir, the hard particles of these materials adheres to the outside surface of foam, isolate mutually between bubble, bubble distribution must be more even, and size is less, then foamed concrete intensity is higher.
Foamed concrete capacity is generally at 500-800kg/m
3, can bubble through the water column, be only 1/4 of solid clay brick, 1/2 of hollow block, can alleviate the 50-60% of wall load, structural weight per square meter alleviates 20-30%, drops to labour intensity, improves speed of application, greatly reduces construction cost.
The foamed concrete produced, has significant thermal and insulating performance, greatly reduces building energy consumption, and its thermal conductivity is 0.08-0.27w/ (m.k), is 10 times of clay brick, cool in summer and warm in winter, can reduce air-conditioner operation time, saves power consumption.Have excellent sound-absorbing sound-proofing properties, the vesicular structure of foamed concrete has possessed good sound-absorbing sound insulation function by it, and after 240mm, wall volume is down to 58dB from 180dB, can reach the sound isolation requirement at common wall point family completely.Shock proof intensity is high, and the swing bearing 30 kilograms of sandbag drops 0.5 kilogram is impacted and do not occurred for three times passing through crackle, and single-point hanging force can bear 1000N, does not occur passing through crackle in 24 hours.
The foamed concrete that the present invention produces, the feature such as there is energy-conserving and environment-protective, sound insulation, heat insulation, waterproof, heat-preserving anti-freezing, shockproof, the life-span is long, simple installation, good processability, can saw, dig, follow closely, bore, glue, connect, punch indeformable, reduce labour intensity, accelerating construction progress, save project total cost, the requirement of different client to modern architecture internal and external environment can be met.
Finally should be noted that; above embodiment is only in order to illustrate technical scheme of the present invention; but not limiting the scope of the invention; although done to explain to the present invention with reference to preferred embodiment; those of ordinary skill in the art is to be understood that; can modify to technical scheme of the present invention or equivalent replacement, and not depart from essence and the scope of technical solution of the present invention.
Claims (9)
1. a foamed concrete, containing Additive, gelling material and chemical additive, it is characterized in that, described Additive is pulverized obtained by construction waste, the weight ratio of described gelling material and Additive is 100:200 to 100:250, and the weight ratio of described gelling material and chemical additive is 100:4.5 to 100:7.3.
2. foamed concrete as claimed in claim 1, it is characterized in that, described chemical additive comprises water reducer, growing agent and aluminium powder, and the weight ratio of described water reducer, growing agent and aluminium powder is (2 ~ 3): (2.4 ~ 4): (0.1 ~ 0.3).
3. a foamed concrete preparation method, is characterized in that, comprises the following steps:
S1 prepares Additive: take construction waste as raw material, pulverizes and makes Additive;
S2 mixes: by Additive, gelling material and chemical additive with weight ratio 100:(200 ~ 250): the ratio of (4.5 ~ 7.3) mixes;
S3 foaming;
S4 cuts.
4. foamed concrete preparation method as claimed in claim 3, it is characterized in that, in step sl, construction waste first through bright solarization, makes it retain 7-9% moisture before pulverizing.
5. the foamed concrete preparation method as described in claim 3 or 4, is characterized in that, in step sl, construction waste selects satisfactory Additive by vibratory screening apparatus after being pulverized.
6. foamed concrete preparation method as claimed in claim 5, is characterized in that, selects by vibratory screening apparatus the adulterant that diameter is less than 1 millimeter.
7. foamed concrete preparation method as claimed in claim 3, is characterized in that, in step S3, and foaming in a mold.
8. foamed concrete preparation method as claimed in claim 7, it is characterized in that, the foaming time is 15 to 60 minutes.
9. foamed concrete preparation method as claimed in claim 3, it is characterized in that, the chemical additive adopted is the mixture comprising water reducer, growing agent and aluminium powder, and the weight ratio of described water reducer, growing agent and aluminium powder is (2 ~ 3): (2.4 ~ 4): (0.1 ~ 0.3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510826226.1A CN105237031A (en) | 2015-11-25 | 2015-11-25 | Foam concrete and manufacturing method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201510826226.1A CN105237031A (en) | 2015-11-25 | 2015-11-25 | Foam concrete and manufacturing method thereof |
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| CN105237031A true CN105237031A (en) | 2016-01-13 |
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| CN201510826226.1A Pending CN105237031A (en) | 2015-11-25 | 2015-11-25 | Foam concrete and manufacturing method thereof |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108395276A (en) * | 2017-02-07 | 2018-08-14 | 张瑞军 | A method of preparing high-strength light cast-in-place concrete partition wall using building castoff |
| CN111677153A (en) * | 2020-04-30 | 2020-09-18 | 吴江笨鸟墙面科技有限公司 | Construction method of heat-insulating concrete wall |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101289332A (en) * | 2008-06-06 | 2008-10-22 | 昆明理工大学 | Low-temperature ceramic foam material and production method thereof |
| CN103043967A (en) * | 2012-12-25 | 2013-04-17 | 天津市裕川微生物制品有限公司 | Lightweight autoclaved foam concrete block and production method thereof |
| CN103304193A (en) * | 2013-06-19 | 2013-09-18 | 河南华泰建材开发有限公司 | Lightweight aggregate foam concrete and production method thereof |
| CN103396044A (en) * | 2013-07-13 | 2013-11-20 | 王进 | Energy-saving building block compounded with construction waste, straws and foamed concrete |
-
2015
- 2015-11-25 CN CN201510826226.1A patent/CN105237031A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101289332A (en) * | 2008-06-06 | 2008-10-22 | 昆明理工大学 | Low-temperature ceramic foam material and production method thereof |
| CN103043967A (en) * | 2012-12-25 | 2013-04-17 | 天津市裕川微生物制品有限公司 | Lightweight autoclaved foam concrete block and production method thereof |
| CN103304193A (en) * | 2013-06-19 | 2013-09-18 | 河南华泰建材开发有限公司 | Lightweight aggregate foam concrete and production method thereof |
| CN103396044A (en) * | 2013-07-13 | 2013-11-20 | 王进 | Energy-saving building block compounded with construction waste, straws and foamed concrete |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108395276A (en) * | 2017-02-07 | 2018-08-14 | 张瑞军 | A method of preparing high-strength light cast-in-place concrete partition wall using building castoff |
| CN111677153A (en) * | 2020-04-30 | 2020-09-18 | 吴江笨鸟墙面科技有限公司 | Construction method of heat-insulating concrete wall |
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| CB02 | Change of applicant information |
Address after: 518000 Shenzhen, Guangming District, Guangdong, Guangming Street, Guangming Road, Jincheng Garden 1, phase 2, building 101-07 Applicant after: Sili special environmental protection materials (Shenzhen) Co., Ltd. Address before: 518000 Guangdong Shenzhen Baoan District Xin'an Street business venture Road southeast side B 704 (office space) Applicant before: SHENZHEN SILIJIA CHEMICAL ENGINEERING CONSTRUCTION MATERIAL CO., LTD. |
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Application publication date: 20160113 |
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| RJ01 | Rejection of invention patent application after publication |